Q. Which of the following processes is concerned with Cholodny-Went theory?
A) Photomorphogenesis
B) Photoperiodism
C) Phototropism
D) photorespiration
Explanation
Phototropism of stem and roots are due to differential hormonal effect. Mechanism is believed to be Cholodny-Went theory, which states that unilateral light produces more auxin (IAA) and hence, more growth in the shaded side resulting in binding.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.